Centroid Properties (Source Extraction)


This dialog sets Properties for the Precision Centroid measurement. This measurement is one of the Post Processing options for the Extract Sources command.

Sample Radius

Specifies the maximum radius, in pixels units, for pixel value used in computing the centroid position. The optimal radius is usually about 2 times the actual FWHM. For example, if the FWHM of a point source is critically sampled near 2 pixels, a sample radius of about 4 pixels gives the most accurate centroid position.

Related Topics

Source Extraction, Post Processing